#define EXT_MEM_SIZE 65536
-u_int8_t sfr_mem[SFR_MEM_SIZE];
-u_int8_t pgm_mem[PGM_MEM_SIZE];
-u_int8_t int_mem[INT_MEM_SIZE];
-u_int8_t ext_mem[EXT_MEM_SIZE];
+static u_int8_t sfr_mem[SFR_MEM_SIZE];
+static u_int8_t pgm_mem[PGM_MEM_SIZE];
+static u_int8_t int_mem[INT_MEM_SIZE];
+static u_int8_t ext_mem[EXT_MEM_SIZE];
void